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highest compression for stock bore raptor?

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Old Sep 14, 2003 | 07:54 PM
  #1  
2001raptor2001's Avatar
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Default highest compression for stock bore raptor?
i have seen 13 to 1 but am looking for at least a 14 to 1 piston, preferably more like a 15 to 1.
does anybody know of where i could get one or if it is even made?
 
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Old Sep 14, 2003 | 08:09 PM
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Default highest compression for stock bore raptor?
does any body make that piston? and how much would the head have to be shaved?
i didn't cc the head so i cant do the calculations
 
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Old Sep 14, 2003 | 08:28 PM
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Default highest compression for stock bore raptor?
I thought that if you shaved the head you would have slack in the cam chain?
 
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Old Sep 14, 2003 | 08:31 PM
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Default highest compression for stock bore raptor?
there is a certain amount that the tensioner can take up. and it would also change the cam timing slightly.
 
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Old Sep 14, 2003 | 08:38 PM
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Default highest compression for stock bore raptor?
Ahhh, I see. Are you planning on running it on alky or a nitro/alky blend? Either way, with that much comp., I would definetly get that stud kit from Craycraft.
 
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Old Sep 14, 2003 | 10:41 PM
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Default highest compression for stock bore raptor?
I raced a raptor with a 14:1 690 "garage built" with a 6 over swingarm and only lost by about 3 bikes. Didnt impress me very much. 16.3:1 is crazy though
 
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Old Sep 15, 2003 | 12:24 AM
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Default highest compression for stock bore raptor?
Why not go further, 17.5:1 dynamic. Actually 20.5:1 static.
 
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Old Sep 15, 2003 | 12:34 AM
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Default highest compression for stock bore raptor?
Pretty soon this thing will run on Diesel! LOL.[img]i/expressions/face-icon-small-smile.gif[/img]
 
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Old Sep 15, 2003 | 02:38 PM
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Default highest compression for stock bore raptor?
WILDCHILD,HIS RAP IS A RUNNER....
 
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Old Sep 15, 2003 | 05:06 PM
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Default highest compression for stock bore raptor?
Where can you even get a 13:1 compression piston for a raptor? All I see advertised is 12:1 at the most.
 
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